<template>
  <div class="header">
    <div class="nav-topbar">
      <div class="container">
        <div class="topbar-menu">
          <a href="javascript:;">小米商城</a>
          <a href="javascript:;">MUI</a>
          <a href="javascript:;">云服务</a>
          <a href="javascript:;">协议规则</a>
        </div>
        <div class="topbar-user">
          <a href="javascript:;" v-if="username">{{username}}</a>
          <a href="javascript:;" v-if="!username" @click="login">登录</a>
          <a href="javascript:;" v-if="username" @click="logout">退出</a>
          <a href="/#/order/list" v-if="username" @click="goToOrder">我的订单</a>
          <a href="javascript:;" class="my-cart" @click="goToCart" 
            ><span class="icon-cart"></span>购物车({{cartCount}})</a
          >
        </div>
      </div>
    </div>
    <div class="nav-header">
      <div class="container">
        <div class="header-logo">
          <a href="/#/index"></a>
        </div>
        <div class="header-menu">
          <div class="item-menu">
            <span>小米手机</span>
            <div class="children">
              <ul>
                <li class="product" v-for="(item,index) in phoneList" :key="index">
                  <a :href="'/#/product/'+item.id" target="_blank">
                    <div class="pro_img">
                      <img v-lazy="item.mainImage" :alt="item.subtitle" />
                    </div>
                    <div class="pro_name">{{item.name}}</div>
                    <div class="pro_price">{{item.price | currency}}</div>
                  </a>
                </li>
              </ul>
            </div>
          </div>
          <div class="item-menu">
            <span>RedMi红米</span>
            
          </div>
          <div class="item-menu">
            <span>小米电视</span>
            <div class="children">
              <ul>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro_img">
                      <img src="/imgs/nav-img/nav-3-1.jpg" alt="" />
                    </div>
                    <div class="pro_name">小米壁画电视</div>
                    <div class="pro_price">6999元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro_img">
                      <img src="/imgs/nav-img/nav-3-1.jpg" alt="" />
                    </div>
                    <div class="pro_name">小米壁画电视</div>
                    <div class="pro_price">6999元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro_img">
                      <img src="/imgs/nav-img/nav-3-1.jpg" alt="" />
                    </div>
                    <div class="pro_name">小米壁画电视</div>
                    <div class="pro_price">6999元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro_img">
                      <img src="/imgs/nav-img/nav-3-1.jpg" alt="" />
                    </div>
                    <div class="pro_name">小米壁画电视</div>
                    <div class="pro_price">6999元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro_img">
                      <img src="/imgs/nav-img/nav-3-1.jpg" alt="" />
                    </div>
                    <div class="pro_name">小米壁画电视</div>
                    <div class="pro_price">6999元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro_img">
                      <img src="/imgs/nav-img/nav-3-1.jpg" alt="" />
                    </div>
                    <div class="pro_name">小米壁画电视</div>
                    <div class="pro_price">6999元</div>
                  </a>
                </li>
              </ul>
            </div>
          </div>
        </div>
        <div class="header-search">
          <div class="wapper">
            <input type="text" name="keyword" />
            <a href="javascript:;"></a>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { mapState } from 'vuex';

export default {
  name: "nav-header",
  data() {
    return {
      phoneList: [],
      
    }
  },
  computed:{
     ...mapState(['username','cartCount'])
  },
  filters:{
    currency(val){
      if(!val)return '0.00';
      return '￥' + val.toFixed(2)+ '元'
    }
  },
  mounted () {
    this.getProductList();
    let params=this.$route.params
    if(params && params.from=='login'){

      this.getCartCount()
    }
  },
  methods: {
    login(){
      this.$router.push('/login')
    },
    getCartCount(){
        this.axios.get('/carts/products/sum').then((res=0)=>{
        //to-do 保存到vuex里面
        this.$store.dispatch('saveCartCount',res)
      })
    },
    logout(){
      this.axios.post('/user/logout').then(()=>{
        this.$message.success('退出成功')
        this.$cookie.set('userId','',{expires:'-1'})
         this.$store.dispatch('saveUserName','')
         this.$store.dispatch('saveCartCount','0')

      })
      
    },
    getProductList(){
      this.axios.get('/products',{
        params:{categoryId:'100012',pageSize:6}
        }
      ).then((res)=>{
          
          this.phoneList = res.list
        }
      )
    },
    goToCart(){
      this.$router.push('/cart')
    },
    goToOrder(){
      this.$router.push('/order/confirm')
    }
  },
};
</script>

<style lang="scss" scoped>
@import "./../assets/scss/base.scss";
@import "./../assets/scss/mixin.scss";
@import "./../assets/scss/config.scss";
.header {
  .nav-topbar {
    height: 39px;
    line-height: 39px;
    background-color: #333333;
    color: #b0b0b0;

    .container {
      @include flex();
      a {
        display: inline-block;
        color: #b0b0b0;
        margin-right: 17px;
      }
      .my-cart {
        width: 110px;
        background-color: #ff6600;
        text-align: center;
        color: #ffffff;
        margin-right: 0px;
        .icon-cart {
          @include bgImg(16px, 12px, "/imgs/icon-cart-checked.png");

          margin-right: 4px;
        }
      }
    }
  }
  .nav-header {
    .container {
      position: relative;
      height: 112px;
      @include flex();
      
      .header-menu {
        display: inline-block;
        width: 643px;
        padding-left: 209px;
        .item-menu {
          display: inline-block;
          color: #333333;
          font-weight: bold;
          font-size: 16px;
          line-height: 112px;
          margin-right: 20px;
          span {
            cursor: pointer;
          }
          &:hover{
            color:$colorA;
            .children {
              height: 220px;
              opacity: 1;
            }
          }
          .children {
            position: absolute;
            top: 112px;
            left: 0;
            width: 1226px;
            height: 0;
            opacity: 0;
            overflow: hidden;
            border-top: 1px solid #e5e5e5;
            box-shadow: 0px 7px 6px 0px rgba(0, 0, 0, 0.11);
            z-index: 10;
            transition: all 0.5s;
            background-color: #ffffff;
            .product {
              position: relative;
              float: left;
              width: 16.6%;
              height: 220px;
              font-size: 12px;
              line-height: 12px;
              text-align: center;
              a{
                  display: inline-block;
              }
              img{
                margin-top: 26px;
                height: 111px;
                width: auto;
              }
              .pro_img{
                height: 137px;
              }
              .pro_name{
                font-weight: bold;
                margin-top: 19px;
                margin-bottom: 8px;
                color: $colorB;
              }
              .pro_price{
                color: $colorA;
              }
              &:before{
              content: ' ';
              position: absolute;
              top: 28px;
              right: 0;
              border-left: 1px solid $colorF;
              height: 100px;
              width: 1px;
             }
             &:last-child:before{
               display: none;
             }
            }
          }
        }
      }
      .header-search {
        width: 319px;
        .wapper {
          height: 50px;
          border: 1px solid #e0e0e0;
          display: flex;
          align-items:center;
          input {
            border: none;
            box-sizing: border-box;
            border-right: 1px solid #e0e0e0;
            width: 264px;
            height: 50px;
            padding-left: 14px;
          }
          a {
            @include bgImg(18px, 18px, "/imgs/icon-search.png");
            display: inline-block;

            margin-left: 17px;
          }
        }
      }
    }
  }
}
</style>
